US Bridges

Or 203 (hwy 340) over I-84 (hwy 6) MP 298.68

Fair

Baker County, Oregon · 125 MI SE Union CO Line · Structure no. 09511 006C29868

Built
1972
53 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
322 ft
2 main spans
Daily traffic
426
2022 count
Owner
State
State Highway Agency

About this bridge

Or 203 (hwy 340) over I-84 (hwy 6) MP 298.68 is a steel continuous stringer/multi-beam or girder carrying Or 203 (hwy 340) over I-84 (hwy 6) MP 298.68 in Baker County, Oregon. It was built in 1972, so it is 53 years old, older than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 426 vehicles a day, roughly 19% of them trucks, projected to reach 440 by 2042. The structure is 322 ft (98.1 m) long and 38 ft wide.

Location

Open in Google Maps
CarriesOr 203 (hwy 340)
CrossesI-84 (hwy 6) MP 298.68
Location125 MI SE Union CO Line
RouteState Highway 203
CountyBaker County
StateOregon
Coordinates44.86164, -117.81653
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.2 US tons
Inventory rating41.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length322 ft (98.1 m)
Longest span140 ft (42.7 m)
Deck width38 ft (11.7 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic426 (2022)
Projected traffic440 by 2042
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Or 203 (hwy 340) over I-84 (hwy 6) MP 298.68 built?

It was built in 1972, making it 53 years old in 2025.

What condition is Or 203 (hwy 340) over I-84 (hwy 6) MP 298.68 in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2024.

How much traffic does Or 203 (hwy 340) over I-84 (hwy 6) MP 298.68 carry?

About 426 vehicles per day (2022 count), of which roughly 19% are trucks.

How long is Or 203 (hwy 340) over I-84 (hwy 6) MP 298.68?

The structure is 322 ft (98.1 m) long with a longest span of 140 ft (42.7 m) and a deck 38 ft wide.

Who owns Or 203 (hwy 340) over I-84 (hwy 6) MP 298.68?

It is owned by the State Highway Agency.